A few days ago we wrote about the aurora open source mixer being available and that orders for the DIY or completed kit needed to be in by September 1, 2008. Well that day has since past and if you were on the fence about it and didn’t get your order in don’t worry about it. Turns out no one will be getting a mixer.
Aurora informs us that they needed to secure a minimum of 50 orders to cover cost, but in reality they were only able to secure less than 20 orders. Because of this, they will not be able to meet the initial production numbers and have postponed the sale of the mixer indefinitely.
All is not lost as they will keep the site up, along with the instructions on how to build your own mixer from scratch.
In most settings business cards are given out without much thought. But what if you could make your card stand out from the rest? By using a 5×15 LED matrix screen, a single micro controller, a number of resistors, switches, and other parts, [tomward] has put together one very slick business card that’s sure to draw attention.
The included instructions go into great detail on the construction, but [tomward]admits that you will need some knowledge in electronics in order to build one yourself. After reading the instructions ourselves we would have to agree with him.
If you’re into programing micro controllers and are handy with a soldering iron you may want to give this a shot.
Ok, you’ve probably already seen it. If not, go watch the new Microsoft commercial right now. The commercial itself is nothing amazing. Its an obvious attempt to humanize [Bill Gates] and Microsoft. [Bill] is almost endearing in his clunky delivery of the lines. We could even get to like him. Imagine him stumbling through the world as a normal guy dealing with software as the rest of us do. Would he change things? Could we get a sitcom with [Bill Gates] and [John Hodgman]? Would you watch it? We would.
For their senior design project at Arizona State University, these guys built a regenerative braking system for their bike. As they brake, the system spools up to give them a push back up to speed. They achieved 25% efficiency on one run, which isn’t too shabby.
The site has all kinds of information. You can check out their different plans and ideas from before they decided on this specific layout as well as all their data from the test runs. Be sure to look at the piece by piece breakdown of what changes were made from the initial design.
We’re back! There may be a bit of oddness for the next few days. Our Fail Whale contest is still running and we’ve received over 100 entries so far. Here’s how you can participate:
While we’re adding more hamsters to our server power plant we thought we’d hold a little art contest. Whenever Twitter goes down, they post the iconic Fail Whale. The Fail Whale has become so popular that it has spawned a dedicated blog and many many art projects: embroidery, tattoos, and laser cut models.
We want to see what you think Hack a Day failure looks like. Create an illustration, photo, sculpture, anything that you think embodies Hack a Day failing. Send your entries to hackaday.fail@gmail.com and add them to the Hack a Day photo pool. The prize is $100 for you to spend in the No Starch Press store. Entries are due 00:00PDT Saturday September 6th 2008.
[ERASME] built this interactive globe interface for an exhibit on Inuit people and their land. The goal was to have a tactile input device to Google Earth data. The unit is composed of a half globe for location selection, a touch pad for layer selection, and a Wiimote for view changes.They had to develop their own driving application for Google Earth as none exists for Linux. The software, called KeyEvents takes inputs from all the devices and mimics keyboard and mouse control in Google Earth.
There is much more information on how they got the pieces to work together, as well as some videos in french showing the device working. One thing that stands out though is that they decided to use direct association on their Wiimote, thus stopping rogue Wiimotes from gaining control. Who would carry a Wiimote around just to hijack public displays? We would.
[Mark Roy] designed this fine RGB LED desktop clock. It uses a PIC16F877A microcontroller and a DS1307N Real Time Clock. There is a ring of 12 RGB LEDs around the perimeter. Hours are indicated in red, minutes green, and seconds blue. If the hands overlap, the colors are mixed. Three buttons are used to set the time and it can run on as little as 0.7volts. You can find out more about the project on Stellar Core. He has plans to kit it in the future.
[Cliff Miller] pointed out this incredible project from 2004. [John Pultorak]’s journey began in late 2000 when he decided to build a 60’s or 70’s era minicomputer. While gathering technical documentation, he found some interesting information on the Apollo Guidance Computer and felt that was the way to go. The AGC was the first integrated circuit computer ever built. Designed by MIT in 1964 it was constructed from ~5000 ICs, almost all 3-input NOR gates. [John]’s version uses late 1960’s 74LS TTL logic which gains him a 10 to 1 reduction in the number of ICs. A good thing when you have to do ~15K wirewrap connections. He also used flipflops and register chips instead of building everything from NOR gates. [John] essentially built the AGC three times: First, he coded a simulator in C++. Then, he imported the logic design into CircuitMaker to verify that it would actually work. Finally, he built the 3 by 5foot machine. He’s provided an amazing amount of documentation for anyone that wants to explore this device and the overview alone is well worth a look.
Reader [John Grayson], known for his multiconsole portable, has constructed a brand new portable. Not liking the controls or the tethered nature of retro TV games he decided to build a modular portable system. He built a custom system that uses cartridges created from TV game systems. The device has a 5.4″ screen and two Canon batteries for 4.5 hours of play.
MySpace users are very familiar with the visage of their first “friend” and MySpace cofounder [Tom Anderson], but did you ever wonder what he used to do before he became everyone’s friend? TechCrunch’s investigative reporting revealed that [Tom] was a hacker in the eighties who hacked into the Chase Manhattan Bank computer system, which attracted the attention of the FBI. Under the handle “Lord Flathead”, he became the leader of a black hat hacker group by the time he was fourteen. His activities (along with those of other hackers) led to one of the largest FBI raids in California history. Because he was a minor at the time, he was not arrested, but put on probation in exchange for an agreement to stop committing computer crimes. This definitely makes having [Tom Anderson] on your friends list just a bit more interesting, doesn’t it?
[David Steeman] sent us this project. He uses a consumer scale to measure rocket engine thrust. He wanted to be able to map the thrust curve of his homemade rocket motors to determine whether they are meeting the design goals. It does this by measuring the force applied by the rocket engine via a microcontroller that records it in a text file on a computer. He then analyzes this data in an Excel spreadsheet.
The sensors were harvested from a consumer scale while the rest of the electronics were built by hand. He’s using a PIC 18F2550 microcontroller which has a built in USB interface. He has breakdowns of each piece with detailed information on how it works as well as some nice pictures. There is also a list of future improvements that he would like to do such as increasing sample speed, integrating it with the ignition, and decreasing the physical size. Files for the schematic, firmware, and excel spreadsheet are available for download at the bottom of the page, so keep scrolling down.
[Adam] and [Jamie] from Mythbusters built a paintball gun with 1100 barrels as some graphics card marketing gimmick. It’s a formidable beast, but we’re sure it takes forever to prep.
